Ok so after running a full backup it sorted itself out so i decided to take the plunge and i have upgraded the clients to 2beta aswell after which i restarted all the clients as well as the server now I'm getting failed backups with the following log
Starting incremental file backup...
Constructing of filelist of "Client Name" failed - TIMEOUT(1)
Backup had an early error. Deleting partial backup.
this is happening to all my 2beta clients however i have left one 1.4.10 which still works
any ideas as to what could be causing this? just a reminder its over internet backups to a windows 2012 R2 server